tz_time_diff: Time difference between two time zones
Description
Returns the time difference in hours between two time zones at a given
instant in time.
Usage
tz_time_diff(when = lubridate::now(), tz.target = Sys.timezone(),
tz.reference = "UTC")
Arguments
tz.target, tz.reference
character Two time zones using names
recognized by functions from package 'lubridate'